hdu 1113 Word Amalgamation

原题链接：http://acm.hdu.edu.cn/showproblem.php?pid=1113

字符串简单题：

stl水过

如下：

 #include<algorithm>
 #include<iostream>
 #include<cstdlib>
 #include<cstring>
 #include<cstdio>
 #include<string>
 #include<map>
 #include<set>
 using std::set;
 using std::map;
 using std::sort;
 using std::string;
 using std::next_permutation;
 set<string> rec;
 int _main(){
 #ifdef LOCAL
     freopen("in.txt", "r", stdin);
     freopen("out.txt", "w+", stdout);
 #endif
     int c = ;
     char buf[], tmp[];
     while (~scanf("%s", buf) && c != ){
         if (!c && strcmp(buf, "XXXXXX") != ) rec.insert(buf);
         else if ( == strcmp(buf, "XXXXXX")) c++;
         else {
             int flag = , n = strlen(buf);
             strcpy(tmp, buf);
             sort(tmp, tmp + n);
             do{
                 if (rec.count(tmp) != ) flag = , printf("%s\n", tmp);
             } while (next_permutation(tmp, tmp + n));
             if (!flag)  printf("NOT A VALID WORD\n", tmp);
             printf("******\n");
         }
     }
     return ;
 }